I just wanted to add that I played around with this solo a bit and the 1 minute timer does not start when you break the glass but as soon as you go past the door. So once you exit the door the timer for crota starts and it's exactly 1 minute, so after you exit start the timer and every 1 minute after he will rotate, first right, then center, then left, etc. In fact if you don't leave the room he never moves so it's all activated when you exit. It has nothing to do with sword bearer either, I never even took him down solo and just watched crota move back and forth like clock work. Your strat seems like the best I have seen so far safety wise and getting it done with minimal issues. Sure it can be done quicker if you burn him right from the beginning but your method seems real solid. Nice job